Java Software Engineer (Fraud Platform)

Vonage; Poland; Hybrid; PLN 180,000 - 260,000; Full time

Benefits offered by this job

Private Medical Insurance with depend.

Multisport Gym Membership

Educational Assistance Reimbursement

Lunch and Learn Sessions

Conference reimbursement

Volunteer Days

Unlimited Discretionary Time Off

Maternity/Paternity Leave

Job summary

Vonage in Wroclaw, Poland, is seeking a Java Software Engineer for the Fraud Platform on a hybrid schedule. You will join a fast-moving team building high-throughput fraud prevention services and microservices designed to scale with business growth.

You will work with Java, Spring, and cloud technologies, contributing to reliable, well-tested systems while leveraging AI-enabled tooling to improve developer productivity and fraud detection accuracy.

Qualifications

• Strong Java backend engineering skills.
• Experience with high-throughput, event-driven architectures.
• Excellent testing across unit/integration/e2e.
• Willingness to learn and adapt.

Responsibilities

• Work alongside fraud experts and engineers on fraud prevention challenges.
• Build high-throughput, low-latency applications for fraud detection.
• Create scalable microservices to support growth.
• Write efficient, scalable code in well-tested systems.
• Collaborate with cross-functional teams for seamless integration.
• Propose scalable, maintainable, cost-effective solutions.
• Influence stack evolution by evaluating new technologies.
• Estimate effort for new features.
• Develop and execute effective testing strategies; take part in on-calls.

Skills

AI-native mindset

Java backend

Testing focus

Event-driven arch

Caching

Tools

Docker

Kubernetes

Helm

Kafka

Prometheus

Grafana

Kibana

MySQL

PostgreSQL

Redis

AWS

Job description

Java Software Engineer (Fraud Platform) Wroclaw, Poland (Hybrid)

Join Vonage and help us innovate cloud communications for businesses worldwide!

Vonage Communications APIs:

As an emerging leader in the $10B+ communications API market, we empower global brands to connect better with their customers, employees, and partners through transformative communications experiences. For example, Vonage API solutions empower organizations to build their custom omnichannel communications structure. This allows them to reach and engage customers on their preferred schedule and channel — including voice, video, and messaging. Think of a rideshare service instantly connecting with customers, hospital staff conducting remote monitoring, customers verifying their identity before completing a purchase, AI virtual agents servicing customers around the clock, and much more.

As businesses continue to shift to a real-time, customer-centric communications model, we are experiencing a time of impressive growth.

Why this role matters:

The Engineering team at Vonage is a group of talented engineers working on complex challenges associated with high-performance distributed systems and processing large volumes of data in real time.

We are looking for a Software Engineer to join our Java development team. You will take a pivotal role in the development of aJavamicroservicesthatarecriticalto our Fraud Prevention Platform. This is a high-impact role at the heart of our fraud prevention capabilities, where your work will directly protect Vonage customers at scale.

We are a team that embraces the future: we have a strong and growing adoption of AI across our engineering workflows, and we actively leverage AI agents in our day-to-day work- from accelerating development cycles to enhancing fraud detection intelligence. If you are excited about working in an environment where AI is not a buzzword but a real part of how we build and operate, you will feel right at home.

What you will do:

• Work alongside some of the best fraud experts and engineers across the industry, collaborating on cutting-edge fraud prevention challenges
• Build high-throughput, low-latency applications to meet fraud detection use cases.
• Create scalable microservice that will help support our impressive growth
• Write efficient and scalable code in well-tested systems
• Collaborate with cross-functional teams to ensure seamless integration and functionality.
• Propose scalable, maintainable, and cost-effective solutions.
• Influence the evolution of our technical stack by evaluating new technologies and helping shape architectural decisions.
• Estimate the effort required to develop and implement new features
• Develop and execute effective testing strategies to ensure software quality and reliability.
• Take part in on-calls for our production services.

The Stack

• Language – Java (primary); Python and Golang experience is a plus
• Spring, Spring Boot
• Cloud – AWS primarily (Bedrock, DynamoDB, RDS, EKS, S3, IAM, SQS, Lambda)
• Monitoring and observability (Prometheus, Grafana, Kibana)
• Kafka
• MySQL/PostgreSQL
• Redis (time series, search)
• Docker, Kubernetes, Helm

What you will bring:

• An AI-native mindset, with practical experience using AI tools or agents to improve engineering productivity, code quality, and problem-solving.
• Excellent software engineering skills in Java for backend services.
• A strong focus on testing including unit, integration, e2e, smoke, performance tests with a customer-first mindset.
• Experience with high throughput event-driven architectures, web services, and caching.
• Practical experience in deploying code in a modern programming environment using tools such as Docker,Kubernetes, Helm.
• Willingness to learn and adapt to new technologies and programming languages.

How you’ll benefit:

• Private Medical Insurance with the option to add dependents
• Multisport Gym Membership
• Educational Assistance Reimbursement Program
• Lunch and Learn Sessions held monthly
• Opportunity to be reimbursed for conferences, trainings, and other events consistent with the area of work aimed at personal development
• Three Paid Volunteer Days a Year
• Unlimited Discretionary Time Off
• Additional Maternity and Paternity Leave

#LI-AR1

There’s no perfect candidate.

You don't need all the preferred qualifications to make a valuable impact on our team. Our employees and customers come from diverse backgrounds, so if you're passionate about what you could achieve at Vonage, we'd love to hear from you.

To learn how we process your personal data during the recruitment process, please refer to our Privacy Notice .

Who we are:

Vonage is a global cloud communications leader. And your talent will further help brands - such as Airbnb, Viber, WhatsApp, and Snapchat - accelerate their digital transformation through our fully programmable-based unified communications, contact center solutions, and communications APIs. Ready to innovate? Then join us today.

Note: The purpose of this profile is to provide a general summary of essential responsibilities for the position and is not meant as an exhaustive list. Assignments may differ for individuals within the same role based on business conditions, departmental need or geographic location.